Type-writing machine.



TYPE WRITING MACHINE.

APPLICATION FILED IEZB.B, 1908.

Patented Jan. 3, 1911.

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UNITED STATES PATENT OFFICE.

WILLIAM G. DUNHAM, OF NEW YORK, N. Y., ASSIGNOR TO WYCKOFF, SEAMANS &BENEDICT, 0F ILION, NEW YORK, A CORPORATION OF NEW YORK.

TYPE-WRITING MACHINE.

Specification of Letters Patent.

Patented J an. 3, 1911.

To all whom it may concern:

Be it known that I, WILLIAM G. DUNI-IAM, citizen of the United States,and resident of the borough of Brooklyn, in the city of New York, in thecounty of Kings and State of New York, have invented certain new anduseful Improvements in Type-Writing Machines, of which the following isa specification.

My invention relates to a hanger construction for type bars and the mainobject of said invention is to provide comparatively simple andefficient means for readily effect ing an adjustment of the hanger.

A further object of my invention is to provide a hanger construction ofthe character specified, which may be readily attached to and detachedfrom its support.

In the accompanying drawings, Figure 1 is a side view partly in sectionshowin a type bar, its hanger and the supporting means therefor, aplaten and type rest being diagrammatically shown in this view. Fig. 2is an enlarged detail transverse sectional view of the segment taken onthe line cc-0c of Fig. 4 and looking in the direction of the arrow atsaid line. Fig. 3 is a like view showing a hanger secured in place byits securing screw. Fig. 4 is an enlarged detail fragmentary frontelevation with parts broken away and parts in section of a type barsegment, the type bar hangers and type bars; this view showing near theright-hand side thereof one of the socket members from which theassociated hanger has been removed, a portion of the adjacent hangerbeing shown sectioned away and to the left of this are shown two hangersand type bars in place, the type bars being shown in section.

I have illustrated my invention in the present instance embodied in afront-strike typewriting machine, although it should be understood thatit may be embodied in various forms of typewriting machines.

The type bar segment 1 is formed with openings 2 which extendtransversely there through and each opening has a socket-like portion 3for cooperation with a ball 4 formed at the end of a hanger stem 5 whichis connected at its forward end to a bifurcated hanger portion 6. Atypebar 7 is contained between the arms formed by the bifurcated portionof the hanger and is pivoted thereto at 8. Each type bar has an arm 9pivoted at 10 to a link 11 connected with a suitable key actuated meansby which the type bar is moved upwardly and rearwardly to strike againstthe front face of a platen 12 diagrammatically illustrated in Fig. 1.Extending from each opening 2 in the seg ment opposite the associatedsocket 3 and in the plane of the segment is a tapped opening 13. A block14 is received within each tapped opening and is recessed or socketed at15 to conform to the curvature of the associated ball received withinthe opening 2, so that the sockets 3 and 15 cooperate with a ball onopposite sides thereof. A screw 16 is received within this tappedopening and is rounded at its lower end as indicated at 17 where itbears on the upper side of the associated bearing block or socket member14. Each opening 2 is formed with an en larged or flaring mouth 18 toafiord a lateral movement for a considerable extent of the stem of theassociated hanger. By turning up the screw 16 the ball of the associatedhanger may be readily inserted in or removed from the socket whichcomprises the member 14 and the recessed portion 3 in the segment, andwhen a hanger is in place, it may be secured in the desired adjustedposition by turning down the associated screw 16. It will be observedthat by this construction a universal or ball and socket joint is formedbetween each hanger and its support by which the hanger may receive alateral adjustment in any direction or may receive an adjustment aroundthe longitudinal axis of its stem, which axis extends centrally throughthe pivotal axis of the type bar and at right angles thereto asindicated by the dotted line a in Fig. 3 in order that the hanger may beadjusted to provide a proper alinement. In other words, the constructionis such that the hanger may be turned on the axis as a center or may beelevated or moved sidewise in order to produce proper alinement and whenthe hanger has been properly adjusted a turning down of the screw 16will secure the hanger in adjusted position. From an inspection of Fig.4 it will be seen that the screws 16 and the openings in which they arereceived, as well as the bearing blocks 14, radiate from the printingpoint or from a horizontal line drawn through the printing point.

It will be observed that by curving the lower end of each screw 16 at 17in the manner shown, pressure may be exerted on the ported by the saidseries of radial openings associated bearing block 14 withouttending todisplace it from the associated ball with 'wlnch it cooperates. In otherwords, an efficient contact may be maintained at all times between thesocket containing member 14 and the associated ball, irrespective of theadjustment of the hanger, and pres "sure may be efiiciently appliedthereto through the screw 16 without afiecting the contact of thebearing block on the ball,

This construction provides simple and efficient means for enablingdifferent characters of adjustment to be given to each typebar hangerand enables the hangers to be readily inserted in place and to beremoved from the segment.

It will be noted that the openings for the screws 16 are formed radiallyof the printing point and downwardly and outwardly from the upper orinner side of the vertically arranged segment, and so that the heads ofthe screws are presented in a segmental row at the upper side of thesegment where they are most conveniently and readily accessible to theassemblers and repairers and adjusters. It will also be seen that theopenings 2 are formed in the segment transversely thereof and of theradial openings provided for the screws, and that the said openingsintersect each other.

What I claim as new and desire to secure by Letters Patent, is

1. In a front strike typewriting machine, the combination of a type barsegment having a series of screw-threaded radial openings containingeach a binding screw; said segment being also formed with a series ofsockets arranged in alinement with said series of radial openings; aseries of type bar entered into said segment transversely of said seriesof radlal screws and seated 1n the said series of sockets; a series ofblocks supand having at their lower portions sockets adapted to beclamped by said screws against said balls; and a series of type barspivotally connected to said series of hangers.

2. In a typewriting machine, the combination of a segment havingopenings therein that extend transversely of the segment,

type bar hangers each having a ball that is received in one of saidopenin s, and screws that extend at substantially right angles to saidopenings in the segment and which are said segment being also formedwith a se ries of transverse openings intersecting said radial openings,the bottoms of said transverse openings being formed with recesses orsockets, a series of type bar hangers arranged on the front side of thesegment and having rearwardly extending stems provided at theirextremities with balls adapted to the said sockets in the bottom of thesaid transverse openings, a series of blocks supported in said series ofradial openings and having at their lower portions sockets adapted tothe upper sides of the said series of balls, a series of retainingscrews arranged in the said radial openings and adapted to be turned oradjusted from the upper side of the segment, and a set of type barspivotally mounted in the set of hangers.

Signed at the borough of Manhattan, city of New York, in the county ofNew York and State of New York this 7th day of February A. D. 1908.

WILLIAM G. DUNHAM. Witnesses:

CHARLES E. SMITH, E. M. WELLS.

